VJ6040

VJ 6040 Vishay Vitramon VJ 6040 UHF Chip Antenna for Mobile Devices FEATURES • Small outline (10.5 mm x 15.5 mm x 1.2 mm) • Omni directional, linear polarization • Complies with MBRAI standard • Complete UHF band coverage (470 MHz to 860 MHz) • Requires a tuning circuit and ground plane for optimal performance • Standard SMT assembly The company’s products are covered by one or more of the following: WO2008250262 (A1), US2008303720 (A1), US2008305750 (A1), WO2008154173 (A1). Other patents pending. • 50 Ω unbalanced interface • Operating temperature range (- 40 °C to + 85 °C) • Reference design and evaluation boards available upon request • Compliant to RoHS directive 2002/95/EC DESCRIPTION The VJ 6040 multi-layer ceramic chip antenna is a small form-factor, high-performance, chip-antenna designed for TV reception in mobile devices in the UHF band. It allows mobile TV device manufacturers to design high quality products that do not bear the penalty of a large external antenna. Utilizing Vishay's unique materials and manufacturing technologies, this product complies with the MBRAI standard while maintaining a small outline. Focusing on consumer applications, the antenna is designed to be assembled onto a PC board in the standard reflow process. Target customers of the VJ 6040 are mobile phone makers, portable multimedia device makers, notebook OEMs and ODMs, and accessory card OEMs and ODMs. The VJ 6040 is the first of a family of products developed by Vishay, a world leader in manufacturing of discrete and passive components. APPLICATIONS • Mobile UHF TV receivers including DVB-T, DVB-H, ISDB-T and MediaFLO devices ANTENNA PERFORMANCE Peak gain The antenna radiation characteristics are influenced by several factors including ground plane dimensions and impedance matching network. The antenna parameters presented hereafter were measured according to the configuration suggested by the VJ 6040 evaluation board, utilizing its four channel active digital tuning circuit. The evaluation board ground plane is 40 mm by 80 mm large. Figure 1 shows peak gain over frequency throughout the UHF band, compared with the MBRAI requirements. 0 -2 Peak Gain (dBi) -4 -6 Standard -8 - 10 - 12 450 Measured Simulated 500 550 600 650 700 750 Frequency (MHz) 800 850 900 Figure 1. Peak Gain vs. Frequency Document Number: 45157 Revision: 02-Jul-09 For technical questions, contact: mlcc@vishay.com www.vishay.com 1 VJ 6040 Vishay Vitramon VJ 6040 UHF Chip Antenna for Mobile Devices Figure 2 displays the measured and simulated radiation efficiency of VJ 6040 over frequency. 40 35 30 Efficiency (%) 25 20 15 10 5 0 460 510 560 610 660 710 Frequency (MHz) Simulated value Measured value 760 810 860 Figure 2. Radiation Efficiency vs. Frequency Applications that do not require full coverage of the UHF band can gain an additional two to three dBi by removing the tuning circuit. In this case the antenna can be fixed to any 150 MHz band within the UHF range. RADIATION PATTERN The 3D planes of VJ 6040 are defined in figure 3. Z X Y Figure 3. VJ 6040 3D Plane Definition www.vishay.com 2 For technical questions, contact: mlcc@vishay.com Document Number: 45157 Revision: 02-Jul-09 VJ 6040 VJ 6040 UHF Chip Antenna for Mobile Devices Vishay Vitramon Figure 4. displays the simulated 3D radiation pattern at 650 MHz. Figure 5. Simulated Radiation Pattern Figure 5. displays the measured radiation patterns of VJ 6040 evaluation board in the YZ plane as defined in figure 3. Zero degrees is defined at the Z axis, stepping counter clockwise. 500 MHz - Gain (dBi) vs. Angle (°) 0 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150 24 18 12 60 354 348 342 600 MHz - Gain (dBi) vs. Angle (°) 0 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150 156 162 168 174 180 186 192 198 24 18 12 60 354 348 342 336 -5 - 10 - 15 - 20 - 25 - 30 - 35 - 40 - 45 - 50 336 330 324 318 312 306 300 294 288 282 276 270 264 258 252 246 240 234 228 222 216 210 -5 - 10 - 15 - 20 - 25 - 30 - 35 - 40 - 45 - 50 330 324 318 312 306 300 294 288 282 276 270 264 258 252 246 240 234 228 222 216 156 162 168 174 180 186 192 198 204 204 210 700 MHz - Gain (dBi) vs. Angle (°) 0 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150 156 162 168 174 204 234 228 222 216 210 24 18 12 6 800 MHz - Gain (dBi) vs. Angle (°) 0 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150 156 162 168 192 198 204 210 234 228 222 216 24 18 12 60 354 348 342 336 0 -5 354 348 342 336 - 10 - 15 - 20 - 25 - 30 - 35 - 40 - 45 - 50 330 324 318 312 306 300 294 288 282 276 270 264 258 252 246 240 -5 - 10 - 15 - 20 - 25 - 30 - 35 - 40 - 45 - 50G 330 324 318 312 306 300 294 288 282 276 270 264 258 252 246 240 180 198 186 192 Figure 5. Measured Radiation Pattern Document Number: 45157 Revision: 02-Jul-09 174 180 186 For technical questions, contact: mlcc@vishay.com www.vishay.com 3 VJ 6040 Vishay Vitramon VJ 6040 UHF Chip Antenna for Mobile Devices FOOTPRINT AND MECHANICAL DIMENSIONS The antenna footprint and mechanical dimensions are presented in figure 6. For mechanical support, it is recommended to add one or two drops of heat curing epoxy glue. The glue dot should not overlap with any of the soldering pads. It is recommended to apply the glue dot at the center of the antenna, as shown by the diagonal pattern. For more details see ‘VJ 6040 Assembly Guidelines’ section below. 0.35 3.6 1.0 0.35 0.5 4.6 0.5 3.6 1.0 ` 0.35 0.35 1.0 4.65 0.5 Glue dot area 4.65 1.0 0.35 1.0 All dimensions in mm Figure not in scale 0.35 RF feed connects here Figure 6. VJ 6040 Footprint VJ 6040 ASSEMBLY GUIDELINES 1. Mounting of antennas on a printed circuit board should be done by reflow soldering. The reflow soldering profiles are shown below. 2. In order to provide the adequate strength between the antenna and the PCB the application of a dot of heat cured epoxy glue in the center of the footprint of the antenna prior to the antenna's soldering to the board should be done. An example for such glue could be Heraeus PD 860002 SA. The weight of the dot should be 5 mg to 10 mg. 300 T (°C) 250 > 215 °C: 20 s to 40 s 200 Max. temperature 150 Min. temperature 100 Sn-Pb eutectic solder paste 50 0 30 s to 60 s 30 s to 60 s 30 s to 60 s Time Figure 7. Soldering IR reflow with SnPb solder www.vishay.com 4 For technical questions, contact: mlcc@vishay.com Document Number: 45157 Revision: 02-Jul-09 VJ 6040 VJ 6040 UHF Chip Antenna for Mobile Devices Vishay Vitramon 300 T (°C) 250 10 s 260 °C ˜ 245 °C 215 °C 10 s 40 s 200 180 °C 150 130 °C 100 2 K/s 50 0 50 100 150 200 t (s) 250 Figure 8. Soldering Reflow with Sn Solder 300 T (°C) 250 Max. temperature 200 Sn-Ag-Cu solder paste 150 Min. temperature 100 50 0 60 s to 120 s 60 s to 120 s 30 s to 60 s 60 s to 120 s Time Figure 9. Soldering IR Reflow with SnAgCu Solder ORDERING INFORMATION VJ 6040 VISHAY MATERIAL VJ6040M011SXISRA0 PACKAGING QUANTITY 1000 pieces Document Number: 45157 Revision: 02-Jul-09 For technical questions, contact: mlcc@vishay.com www.vishay.com 5 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1